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Author Question: When some subjects stop participating in an experiment before it is completed, affecting the results ... (Read 149 times)

sabina

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on: Jun 28, 2018
When some subjects stop participating in an experiment before it is completed, affecting the results of the study, a(n) ____ effect has occurred.
 a. mortality
  b. history
  c. instrumentation
  d. confounding

Question 2

When a change in the wording of questions, a change in interviewers, or a change in other procedures causes a change in the dependent variable, a(n) ____ effect has occurred.
 a. instrumentation
  b. redundancy
  c. cohort
  d. attrition


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frogdreck123456

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Reply #1 on: Jun 28, 2018
Answer to Question 1

A

Answer to Question 2

A


sabina

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Reply 2 on: Jun 28, 2018
YES! Correct, THANKS for helping me on my review

rleezy04

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Reply 3 on: Yesterday
Wow, this really help

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